Official site — freelingo.ai

FreeLingo official iOS vocabulary app for language memory.

This is the official website for the FreeLingo iOS app. FreeLingo turns your own notes, files, vocabulary books, and study materials into word plans you can keep reviewing — powered by AI word cards, an 8-step spaced repetition schedule, listening review, and AI practice.

Official FreeLingo siteiOS vocabulary app11 learning languages1,300+ word booksImport your materialsSpaced repetition
FreeLingo daily language plan screen
Daily plan
FreeLingo AI word card with rich details
AI word card
FreeLingo spaced repetition review screen
Review timing

Use cases

Start from the vocabulary workflow you need

FreeLingo keeps the global homepage focused on the product, while dedicated pages cover specific search intents such as Korean vocabulary, Japanese N5 words, Ebbinghaus review, and importing materials into study plans.

11 Target languages
8 Review checkpoints
6 AI card types
5 Content formats
9 Deep AI languages

Resource Library

1,300+ ready-made word books

Browse by language, level, or topic. Every book is ready to add to your study plan — no setup needed.

Categories

Primary schoolMiddle schoolHigh schoolCET-4 & CET-6Postgrad entranceTOEFL & IELTSBusiness English (BEC)Medical EnglishLawChemistryComputer scienceFriends (TV show)

Popular books

  • CET-6 core vocabulary
  • TOEFL root + association
  • BEC high-frequency
  • Medical specialty terms
  • Android / Java / JS terms

Categories

JLPT N5 – N1Basic entryPronunciation & kanaCore grammarScene conversationListening & readingCulture & communicationHigh-frequency phrasesExam prepSpecialized terms

Popular books

  • JLPT N1 expert-level
  • JLPT N2 – N5 graded sets
  • Daily conversation topics
  • Campus & study abroad
  • Workplace & business

Categories

Entry basicsPronunciation & scriptCore grammarScene conversationListening & readingTOPIK exam prepHigh-frequency phrasesProverbs & idiomsCulture & communicationSpecialized terms

Popular books

  • TOPIK graded vocabulary
  • Easily confused & synonyms
  • Proverbs & set expressions
  • Workplace Korean

Categories

Entry basicsPronunciation & stressCore grammarScene conversationDELE A1 – B2SIELE comprehensiveHigh-frequency phrasesCulture & communicationSpecialized termsReview & assessment

Popular books

  • DELE A1-A2 & B1-B2
  • SIELE comprehensive
  • Travel & city life
  • Work & social

Categories

HSK graded vocabularyBasic entryDaily lifeTravel ChineseBusiness & workplaceStudy abroadYouth / childrenCulture & exchange

Popular books

  • HSK level-graded words
  • Mock tests & skills drills
  • Office & meeting scenarios
  • Medical & banking daily tasks

Categories

Entry basicsPronunciation & spellingCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Travel & city life
  • Study, work & social
  • Residence & public affairs
  • Dining & shopping

Categories

Entry basicsPronunciation & spellingCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Beginner to advanced
  • Everyday conversation
  • Grammar-focused sets

Categories

Entry basicsPronunciation & spellingCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Beginner to advanced
  • Scene-based learning
  • High-frequency collocations

Categories

Entry basicsScript & pronunciationCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Arabic script entry
  • Everyday & travel topics
  • Professional vocabulary

Categories

Entry basicsScript & pronunciationCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Cyrillic script entry
  • Grammar & aspect pairs
  • Daily & travel phrases

Categories

Entry basicsScript & pronunciationCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Thai script & tones
  • Conversation topics
  • Beginner to intermediate
FreeLingo daily learning plan on iPhone
FreeLingo AI word card with rich details
FreeLingo spaced repetition review screen
FreeLingo vocabulary import pipeline
FreeLingo AI conversation practice
FreeLingo progress and analytics

The memory gap

Learning is easy. Remembering is hard.

Most apps help you learn more. FreeLingo helps you return at the moments your memory needs support.

Memory retention curve comparison Without review memory drops quickly. With FreeLingo review points lift retention over time. 30 min 12 h 1 day 2 days 4 days 7 days 15 days 30 days Memory strength Time With FreeLingo Without review

Science

Built around the forgetting curve.

FreeLingo automatically schedules 8 review sessions at the exact moments your memory is most likely to fade — 30 minutes, 12 hours, then 1, 2, 4, 7, 15, and 30 days later. Smart notifications respect your quiet hours, and the recommended review duration adapts to your error rate and how late you are.

  1. 01 30 min
  2. 02 12 h
  3. 03 1 day
  4. 04 2 days
  5. 05 4 days
  6. 06 7 days
  7. 07 15 days
  8. 08 30 days

Product

A system that keeps your next step clear.

FreeLingo turns vocabulary, notes, images, videos, and ready-made lessons into plans you can review with cards, listening, tests, and AI conversation — all in one place.

Daily plan screenshot

Daily plan

A smart home card tells you exactly what to learn, review, or finish today — and adapts to overdue reviews and your quiet-hours schedule.

Smart import screenshot

Smart import

Import vocabulary from pasted text, TXT, CSV, Word, Markdown, photos, OCR, or voice. Preview, filter duplicates, and append to an existing plan — all before saving.

Ready-made lessons screenshot

Ready-made lessons

Browse categorized word books for your target language. Preview vocabulary, then add directly to your learning plan.

Multi-mode review screenshot

Multi-mode review

Review with flashcards, listening mode, Bloom's taxonomy tests, similar-word practice, or spelling. Each session records accuracy and adjusts your next review duration.

Listening review screenshot

Listening review

Turn any vocabulary list into an audio queue. Configure preparation time, repeat count, and whether the app reads the definition aloud — hands-free review while doing other things.

Progress & analytics screenshot

Progress & analytics

GitHub-style contribution heatmap, review calendar, time-series study stats, quality metrics — compliance rate, effective review rate, memory retention rate.

AI

Three layers of AI, working together.

AI in FreeLingo isn't a chatbot tacked on the side. It runs through the word cards, the conversation practice, and the personalized Feed — all using your actual learning data.

AI Word Cards

Rich word cards powered by AI.

For 9 languages, FreeLingo goes beyond a basic translation. Each card surfaces the details that actually help you remember — phonetics, collocations, word forms, example sentences, and language-specific notes.

  • French: gender, articles, plural forms, common collocations
  • Arabic: RTL text, transliteration, root & word patterns
  • Russian: stress marks, three genders, aspect pairs
  • Japanese: furigana, reading, pitch accent hints
  • Spanish, Korean, German, Portuguese, Thai: pronunciation & usage notes
Rich word cards powered by AI. screenshot
AI Word Cards

AI Conversation

Chat with AI that knows your lesson.

FreeLingo's AI chat isn't a separate tool bolted on the side. It knows today's vocabulary, your due reviews, and your recent mistakes — and turns that into focused conversation practice.

  • Multiple AI personas with different conversation styles
  • Context-aware: uses your actual learning data
  • Free users: 5 conversations/day · VIP: 50/day
  • Auto-retry on failures, message history saved locally
Chat with AI that knows your lesson. screenshot
AI Conversation

AI Feed

Six types of AI cards to deepen your memory.

The Feed generates personalized cards from words you have already learned, using six different AI lenses to help you see each word from a new angle.

  • Confusion — spot the difference between similar words
  • Intuition — test your instinctive understanding
  • Word Family — explore roots, derivatives, and cousins
  • Scene — see the word in a real-world context
  • Misuse — learn the most common wrong uses
  • Emotion — understand the emotional register
Six types of AI cards to deepen your memory. screenshot
AI Feed

Content

Not just vocabulary. Memorize anything.

Create memory plans from words, class notes, images, videos, classic poetry, or any imported file. FreeLingo handles all five content formats with dedicated review flows.

FreeLingo listening review screen
Listening review

Anywhere

Review anywhere. Reinforce everywhere.

FreeLingo turns spare moments into memory moments. Listen while commuting, glance at the lock screen widget, share content from any app, sync your review schedule to your calendar, or let the AI Feed surface words you already know from a new angle.

Personalized AI FeedListening reviewLock screen widgetShare ExtensionSmart notificationsCalendar synciCloud syncOffline study

Languages

Depth, not just breadth.

FreeLingo supports 11 target learning languages. Nine of them have AI-powered rich word cards that go far beyond a simple translation.

English
  • IPA phonetics
  • Example sentences
  • Similar-word tests
  • Offline word bank
Chinese
  • Pinyin & tones
  • Character details
  • Poetry support
  • Stroke hints
Japanese
  • Furigana
  • Pitch accent
  • Kanji readings
  • JLPT context
Spanish
  • Pronunciation guide
  • Collocations
  • Example sentences
  • AI word cards
Korean
  • Romanisation
  • Pronunciation
  • Example sentences
  • AI word cards
German
  • Gender & articles
  • Declension hints
  • Collocations
  • AI word cards
French
  • Gender & articles
  • Plural forms
  • Collocations
  • AI word cards
Portuguese
  • Pronunciation
  • Collocations
  • Example sentences
  • AI word cards
Arabic
  • RTL support
  • Transliteration
  • Root & patterns
  • AI word cards
Russian
  • Stress marks
  • Three genders
  • Aspect pairs
  • AI word cards
Thai
  • Romanisation
  • Tone marks
  • AI word cards
  • TTS audio

Pricing

Start free. Upgrade when you're ready.

FreeLingo is free to start. Upgrade to VIP for unlimited plans, deeper AI, and full review rounds — or buy once with Lifetime.

Free

Start building your vocabulary system.

  • 1 active learning plan
  • First 3 review rounds per plan
  • Full card & listening review
  • All 5 content formats
  • 5 AI conversations per day
  • Core Feed cards
  • Lock screen widget
  • iCloud sync
  • 1 active plan at a time
  • Reviews limited to round 3
  • Poetry PDF export has watermark
Most popular

VIP

Unlimited plans, deeper AI, and no limits.

  • Unlimited active plans
  • All 8 Ebbinghaus review rounds
  • 50 AI conversations per day
  • Full AI Feed deep cards
  • Watermark-free PDF export
  • Advanced study analytics
  • Priority access to new features
Get VIP

Lifetime

Buy once. All VIP features. Forever.

  • Everything in VIP
  • One-time purchase — no subscription
  • All future updates included
Buy Lifetime

All prices are set per market in the App Store. Restore any previous purchase from within the app.

FAQ

Frequently asked questions.

FreeLingo supports 11 target learning languages: English, Chinese, Japanese, Spanish, Korean, German, French, Portuguese, Thai, Arabic, and Russian. Several languages include AI-powered word cards with pronunciation, examples, collocations, and language-specific notes.

After you study a plan, FreeLingo schedules review sessions around 30 minutes, 12 hours, 1 day, 2 days, 4 days, 7 days, 15 days, and 30 days later. The app also considers overdue reviews, error rate, and review performance so you know what to study today.

AI helps generate richer word cards, practice prompts, conversation practice, and personalized review content from the words you are studying. AI content supports learning and should not replace dictionaries, textbooks, or official exam standards.

No separate account is required. FreeLingo uses a device-based identity and can sync core learning data through iCloud, so you can download the app and start building vocabulary plans quickly.

Yes. FreeLingo supports pasted text, TXT, CSV, Word, Markdown, OCR images, camera scans, and voice materials. After import, you can preview the vocabulary, filter basic words, remove duplicates, and create or extend a learning plan.

FreeLingo is free to start, with one active learning plan and core review features. VIP unlocks more plans, full review rounds, higher AI limits, and advanced features. Current pricing is shown in the App Store.

Previously studied content can be reviewed offline with flashcards, listening review, and progress tracking. AI conversation, resource exploration, and some AI word-card features require a network connection.

FreeLingo focuses on learning plans, imported materials, and spaced repetition. Instead of only storing word lists, it connects word books, custom materials, AI word cards, listening review, lock screen practice, and Ebbinghaus-style review checkpoints.

Start today

Build a vocabulary system that lasts.

FreeLingo combines AI, spaced repetition, and your own study materials — free to start, no account needed.

Download on the App Store